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Exccercises abt forces Exccercises abt forces Exccercises abt forces Exccercises abt forces Exccercises abt forcesExccercises abt forces
Typology: Summaries
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Q1. Fill in the table below for the two kinds of wave. Transverse Wave Longitudinal Wave Definition Diagram Examples Q2. What is the diƯerence between a sinusoidal wave and a transverse wave? Q3. A harmonic wave is described by 𝑦 = 5𝑠𝑖𝑛(11𝑥– 350𝑡). Find the: a) Amplitude b) Frequency c) Wavelength d) Velocity
e) Direction of propagation (positive or negative x direction) Q4. Power (the rate of change of energy) is transmitted along a string by a sinusoidal wave. Find the change in power for each of the following changes made to the wave. NOTE: Rate of energy transfer is not a tested topic, but you can solve this question given the equation for power: 𝑃 = ଵ ଶ
a) Halving the linear mass density of the string b) Doubling the wavelength of the wave c) Tripling the tension in the string d) Doubling the amplitude of the wave Q5. A wave propagates along a piano string at 324 m/s when the tension in the string is 2100 N. Find the linear density in kg/m of the string.
Q8. A stretched string is observed to vibrate in three equal segments when driven by a 624Hz oscillator. What is the fundamental frequency? Q9. The fundamental frequency of an open organ pipe corresponds to the note D (293.665 Hz). The third resonance (fifth harmonic) of an organ pipe with one end closed has the same frequency. If the speed of sound is 340 m/s, what is the length of each of the two pipes? HINT: draw a diagram for each scenario.
